Cutter-bar for reaping and mowing machines



(No Model.)

T. TAYLOR.

CUTTER BAR FOR REAPING AND MOWING MACHINES. No. 259,602. PatentedJi1ne13,1882.

WITNESSES gNVENTOR $5; wry 43 7@ BY X144 ATTORNEYS.

UNITED STATES PATENT EEicE.

THEODORE TAYLOR, OF LA GRANDE, OREGON.

CUTTER-BAR FOR REAPING AND MOWING MACHINES.

SPECIFICATION forming part of Letters Patent No. 259,602, dated June 13,1882.

Application filed January 10, 1882. (No model.)

1" 0 all whom tt may concern:

Be it known that I, THEODORE TAYLOR, of La Grande, in the county ofUnion and State of Oregon, have invented certain new and usefulImprovements in Gutter-Bars for Reaping and Mowing Machines, of whichthefollowing is a full, clear, and exact description.

The object of my invention is to provide for convenient attachment andremoval of the knives of cutter-bars; to which end the inventionconsists in a cutter bar provided with studs for engaging the knives anda clampingpiece for securing them, as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure l is a front elevation of a cutter-bar embodying my invention.Fig. 2 is a sectional plan view of the same. Fig. 3 is aplau view insection on line :20 a: of Fig. 1, and with the clamps opened; and Fig. 4is a cross-section on line w as of Fig. 3.

A is the cutter-bar, consisting of bottom plate, a, back plate, b, andcap-plate c, which may be of a single piece or two or more piecessecured together. On the bottom plate, a, are studs d, which extendabove the plate a distance equal to the thickness of the knives orsections 6. The studs may be round, square, oblong, or other shape bestsuited for their purpose, and they may be riveted to the plate orscrewed therein, so as to allow removal by a wrench. The knives orsections a are formed with holes or recesses to fit the studs, so thatwhen the knives are placed on the bottom plate they are engaged by thestuds and thus kept in place.

To clamp the knives and prevent them from rising oh the studs, theclamping-pieces ffare provided, such pieces being strips of a size tofill the space between the upper side of the knives and under side ofthe cap-plate 0. In Figs. 1, 2, and 3 there are two pieces f shown,attached at one end by a hinge-pin, g, so that they can be turned in andout of place. One piece f laps on the other at the end when closed, anda bolt, h, passing through the cutter-bar and outer clamp, retains bothin place; or a screw may be used for the same purpose.

To allow removal ofthe knives, the bolt or screw h will first be takenout and the clamps fthen swung out.

A hole, 2', is provided in back plate, I), for insertion of a suitabletool to push out the clamps.

The advantages of this cutter are briefly as follows: The cutters, orany number of them, can be readily removed, as is often desirable. Thecutters can be more rapidly and perfectly ground when removed from thebar. There are no screws liable to become loose by the vibration. Onlyone bolt has to be loosened in removing the cutters.

I am aware that it is not new to provide the bottom plate of acutter-bar with studs, which enter perforations in the knives, and todetachably secure the top plate of the cutter over the knives by screwsor bolts, and. therefore do not claim such but What I do claim, anddesire to secure by Letters Patent, is-

l. The combination, with a cutter-bar provided with studs on its bottomplate, and knives having recessed edges, ofhin ged clamping-piecesadapted to be secured in the space between knives and cap-plate,substantially as herein shownand described, and for the purpose setforth.

2. The combination, with the cutter-bar A, having studs 01 on its bottomplate, a, and the knives 0, having recessed edges, of the clamps f,hinged to the ends of the said cutter-bar,

and having overlapping ends, and the fastening-bolt h, substantially asand for they purpose set forth.

THEODORE TAYLOR. Witnesses:

H. N. DWIGHT, P. A. MAHAFEEY.

